import sys
import unittest
import io

from resync.resource import Resource
from resync.resource_list import ResourceList
from resync.capability_list import CapabilityList
from resync.sitemap import Sitemap, SitemapIndexError, SitemapParseError

import subprocess


def run_resync(args):
    args.insert(0, './resync-build')
    proc = subprocess.Popen(args, stdout=subprocess.PIPE)
    (out, err) = proc.communicate()
    return(out)


class TestClientLinkOptions(unittest.TestCase):

    def test01_no_links(self):
        xml = run_resync(['--write-resourcelist',
                          'http://example.org/t', 'tests/testdata/dir1'])
        rl = ResourceList()
        rl.parse(fh=io.BytesIO(xml))
        self.assertEqual(len(rl), 2)
        self.assertEqual(rl.link('describedby'), None)

    def test02_resource_list_links(self):
        xml = run_resync(['--write-resourcelist',
                          '--describedby-link=a',
                          '--sourcedescription-link=b',  # will be ignored
                          '--capabilitylist-link=c',
                          'http://example.org/t', 'tests/testdata/dir1'])
        rl = ResourceList()
        rl.parse(fh=io.BytesIO(xml))
        self.assertEqual(len(rl), 2)
        self.assertNotEqual(rl.link('describedby'), None)
        self.assertEqual(rl.link('describedby')['href'], 'a')
        self.assertNotEqual(rl.link('up'), None)
        self.assertEqual(rl.link('up')['href'], 'c')

    def test03_capability_list_links(self):
        xml = run_resync(['--write-capabilitylist=resourcelist=rl,changedump=cd',
                          '--describedby-link=a',
                          '--sourcedescription-link=b',
                          '--capabilitylist-link=c'])  # will be ignored
        capl = CapabilityList()
        capl.parse(fh=io.BytesIO(xml))
        self.assertEqual(len(capl), 2)
        self.assertNotEqual(capl.link('describedby'), None)
        self.assertEqual(capl.link('describedby')['href'], 'a')
        self.assertNotEqual(capl.link('up'), None)
        self.assertEqual(capl.link('up')['href'], 'b')